package cn.dxj1016.lesson02;

import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.ServerSocket;
import java.net.Socket;
//服务端
public class TcpServerDemo02 {
    public static void main(String[] args) throws Exception {
//        1.创建服务
        ServerSocket serverSocket = new ServerSocket(9000);
//        2.监听客户端的连接
        Socket socket = serverSocket.accept();//阻塞式监听，会一直等待客户端连接
//        3.获取输入流
        InputStream is = socket.getInputStream();
//        4.文件输出
        FileOutputStream fos = new FileOutputStream(new File("receive.jpg"));
        byte[] buffer = new byte[1024];
        int len;
        while ((len = is.read(buffer)) != -1) {
            fos.write(buffer, 0, len);
        }
//        通知客户端我接收完毕了
        OutputStream os = socket.getOutputStream();
        os.write("我接收完毕了，你可以断开了".getBytes());

//        关闭资源
        fos.close();
        is.close();
        socket.close();
        serverSocket.close();
    }
}
